Table 4 Odds ratios of experiencing FGM and 95% Confidence Intervals (CI) amongst women aged 15–49 years in Burkina Faso, 1999, 2003 and 2010

Birth Cohort (Reference is 1950–1959 in 1999 and 2003 and 1960–1969 in 2010)

1960-1969

0.76

(0.56,1.03)

0.80

(0.64,1.00)

1979-1979

0.67

(0.50,0.89)*

0.58

(0.47,0.72)**

0.64

(0.54,0.77)**

1980-1989

0.53

(0.35,0.79)*

0.42

(0.34,0.53)**

0.31

(0.26,0.36)**

1990-1995

0.16

(0.13,0.20)**

Age at Marriage (Reference is Before age 18)

18 Years or more

0.84

(0.68,1.05)

0.90

(0.79,1.03)

0.85

(0.76,0.94)*

Ethnicity: Reference is Mossi

Bobo, Dioula, Senoufu

0.88

(0.40,1.95)

1.19

(0.84,1.71)

0.61

(0.45,0.82)*

Fulfuldé,Peul,Touareg,Bella

0.99

(0.54,1.80)

0.62

(0.45,0.86)*

0.38

(0.30,0.48)**

Gourmatché

1.49

(0.72,3.06)

0.52

(0.33,0.79)*

0.32

(0.23,0.45)*

Gourounsi and Bissa

0.43

(0.26,0.70)*

0.33

(0.22,0.50)**

0.66

(0.51,0.85)*

Lobbi and Dagara

1.96

(0.95,4.04)

0.65

(0.46,0.92)*

0.99

(0.70,1.40)

Other ethnicities

0.88

(0.55,1.41)

0.84

(0.59,1.20)

0.81

(0.64,1.03)

Education level: Reference is no education

Primary education or higher

0.99

(0.71,1.38)

0.97

(0.79,1.18)

0.80

(0.69,0.92)*

Residence : Reference is Urban

Rural

0.67

(0.39,1.17)

1.03

(0.72,1.49)

1.61

(1.20,2.15)*

Religion: Reference is Christian

Muslims

1.79

(1.35,2.36)**

1.86

(1.56,2.33)**

2.13

(1.86,2.45)**

Traditional and other religions

1.81

(1.23,2.66)*

1.34

(1.06,1.69)*

1.44

(1.14,1.82)*